In the kata Wansu: The movement in the beginning when the right fist is brought to the left palm, is often interpreted as "Karate is my secret."
The movement (which not all styles perform) in the end when the hands are brought to a "praying position" is often taught as "I pray for forgiveness."
The opening mudra of Naihanchi which most styles perform (hands held palms down) is taught as "Bring all forces into your body and obtain peace, tranquility and ultimate reality."
-Al